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Multielement indexing of a row array

The row array birthRateChina stores the China birth rate (per 1000 people) for years 2000 to 2012. Write a statement that create...

6 years ago

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Find the sum of the elements in the "second" diagonal

Find the sum of the elements in the diagonal that starts at the top-right corner and ends at the bottom-left corner.

6 years ago

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Length of a short side

Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...

6 years ago

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Return a list sorted by number of occurrences

Given a vector x, return a vector y of the unique values in x sorted by the number of occurrences in x. Ties are resolved by a ...

6 years ago

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Sum of diagonal of a square matrix

If x = [1 2 4; 3 4 5; 5 6 7] then y should be the sum of the diagonals of the matrix y = 1 + 4 + 7 = 12

6 years ago

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Reverse Run-Length Encoder

Given a "counting sequence" vector x, construct the original sequence y. A counting sequence is formed by "counting" the entrie...

6 years ago

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Tell me the slope

Tell me the slope, given a vector with horizontal run first and vertical rise next. Example input: x = [10 2];

6 years ago

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Project Euler: Problem 1, Multiples of 3 and 5

If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23...

6 years ago

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Length of the hypotenuse

Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<http://upload....

6 years ago

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Elapsed Time

Given two date strings d1 and d2 of the form yyyy/mm/dd HH:MM:SS (assume hours HH is in 24 hour mode), determine how much time, ...

6 years ago

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Is this triangle right-angled?

Given three positive numbers a, b, c, where c is the largest number, return *true* if the triangle with sides a, b and c is righ...

6 years ago

Submitted

Plot the structure of your structure.

Make a nice visualization of the contents of your structure. Even if it contains some substructures.

6 years ago | 4 downloads |

Answered

How to add two sparse matrices or ndSparse matrices in MATLAB?

help sparse fourth and fifth argument of sparse prescribe the dimensions. If you know them from the beginning of ayour code, ...

How to add two sparse matrices or ndSparse matrices in MATLAB?

help sparse fourth and fifth argument of sparse prescribe the dimensions. If you know them from the beginning of ayour code, ...

6 years ago | 0

Answered

Neighbors of a pixel

Let A be your matrix. % use the help of a bigger matrix B=nan(size(A)+2); B(2:end-1,2:end-1)=A; % pre-define memor...

Neighbors of a pixel

Let A be your matrix. % use the help of a bigger matrix B=nan(size(A)+2); B(2:end-1,2:end-1)=A; % pre-define memor...

6 years ago | 2

| accepted

Answered

How to view Matlab standalone application errors?

Some thoughts: - use the MATLAB var "isdeployed" to insert some debug infos for deployed applications that do not bother you ...

How to view Matlab standalone application errors?

Some thoughts: - use the MATLAB var "isdeployed" to insert some debug infos for deployed applications that do not bother you ...

6 years ago | 0

Answered

volume or point detection in a non-convex polyhedron

The submission intriangulation may serve your needs. <https://www.mathworks.com/matlabcentral/fileexchange/43381-intriangulat...

volume or point detection in a non-convex polyhedron

The submission intriangulation may serve your needs. <https://www.mathworks.com/matlabcentral/fileexchange/43381-intriangulat...

6 years ago | 1

Solved

Make one big string out of two smaller strings

If you have two small strings, like 'a' and 'b', return them put together like 'ab'. 'a' and 'b' => 'ab' For extra ...

6 years ago

Solved

Making change

Given an amount of currency, return a vector of this form: [100 50 20 10 5 2 1 0.5 0.25 0.1 0.05 0.01] Example: Input a = ...

6 years ago

Solved

Which doors are open?

There are n doors in an alley. Initially they are all shut. You have been tasked to go down the alley n times, and open/shut the...

6 years ago

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Counting Money

Add the numbers given in the cell array of strings. The strings represent amounts of money using this notation: $99,999.99. E...

6 years ago

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De-dupe

Remove all the redundant elements in a vector, but keep the first occurrence of each value in its original location. So if a =...

6 years ago

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Sorted highest to lowest?

Return 1 if the input is sorted from highest to lowest, 0 if not. Example: 1:7 -> 0 [7 5 2] -> 1

6 years ago

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Balanced number

Given a positive integer find whether it is a balanced number. For a balanced number the sum of first half of digits is equal to...

6 years ago

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Quote Doubler

Given a string s1, find all occurrences of the single quote character and replace them with two occurrences of the single quote ...

6 years ago

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Is my wife right? Now with even more wrong husband

Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

6 years ago

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Replace NaNs with the number that appears to its left in the row.

Replace NaNs with the number that appears to its left in the row. If there are more than one consecutive NaNs, they should all ...

6 years ago

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Lightning strike distance: Writing a function

Write a function named LightningDistance that outputs "distance" given input "seconds". Seconds is the time from seeing lightnin...

6 years ago

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Pangrams!

A pangram, or holoalphabetic sentence, is a sentence using every letter of the alphabet at least once. Example: Input s ...

6 years ago